Antimicrobial lubricant composition containing a diamine acetate

An antimicrobial conveyor lubricant composition comprising:

• (a) a major proportion of water,
• (b) an effective lubricating and antimicrobial amount of a diamine acetate having the formula
• ((R.sup.1)NH(R.sup.2)NH.sub.3).sup.+ (CH.sub.3 COO).sup.-
• or
• ((R.sup.1)NH.sub.2 (R.sup.2)NH.sub.3.sup.++)(CH.sub.3 COO).sub.2.sup.-
• wherein R.sup.1 is an ether group having the formula R.sup.10 O(R.sup.11) wherein R.sup.10 is a C.sub.10-18 aliphatic group and R.sup.11 is a C.sub.1-5 alkyl group, and R.sup.2 is a C.sub.1-5 alkylene group, and
• (c) an effective cleansing amount of a nonionic surfactant.

An antimicrobial conveyor lubricant comprising:

• (a) a major proportion of water,
• (b) an effective lubricating and antimicrobial amount of the neutralization product of acetic acid and a diamine having the formula
• (R.sup.1)NH(R.sup.2)NH.sub.2
• wherein R.sup.1 is an ether group having the formula R.sup.10 O(R.sup.11) wherein R.sup.10 is a C.sub.10-18 aliphatic group and R.sup.11 is a C.sub.1-5 alkyl group, and R.sup.2 is a C.sub.1-5 alkylene group, and
• (c) an amount of an alcohol effective for enhancing the physical stability of the composition, wherein the pH of the lubricant is between about 5 and 6.

An antimicrobial conveyor lubricant comprising:

• (a) an effective lubricating and antimicrobial amount of the neutralization product of acetic acid and a diamine having the formula
• (R.sup.1)NH(R.sup.2)NH.sub.2
• wherein R.sup.1 is an ether group having the formula R.sup.1 OO(R.sup.11) wherein R.sup.10 is a C.sub.10-18 aliphatic group and R.sup.11 is a C.sub.1-5 alkyl group, and R.sup.2 is a C.sub.1-5 alkylene group,
• (b) an effective cleansing amount of a nonionic surfactant, and
• (c) a balance of water wherein the pH of the lubricant is between about 5 and 6.

A process for lubricating and reducing microbiological concentrates on the load bearing surface of a conveyor system comprising the step of coating the load bearing surface of the conveyor system with a conveyor lubricant comprising:

• a major proportion of water, and
• (b) an effective lubricating and antimicrobial amount of a diamine acetate having the formula
• ( (R.sup.1)NH(R.sup.2)NH.sub.3 .sup.+ (CH.sub.3 COO).sup.-
• or
• ( (R.sup.1)NH.sub.2 (R.sup.2)NH.sub.3.sup.++) (CH.sub.3 COO).sub.2.sup.-
• wherein R.sup.1 is an ether group having the formula R.sup.10 O(R.sup.11) wherein R.sup.10 is a C.sub.10-18 aliphatic group and R.sup.11 is a C.sub.1-5 alkyl group, and R.sup.2 is a C.sub.1-5 alkylene group.

A process for lubricating and reducing microbiological concentrations on the load bearing surface of a conveyor system comprising the step of coating the load bearing surface of the conveyor system with a conveyor lubricant comprising:

• (a) a major proportion of water, and
• (b) an effective lubricating and antimicrobial amount of the neutralization product of acetic acid and a diamine having the formula
• (R.sup.1)NH(R.sup.2)NH.sub.2
• wherein R.sup.1 is an ether group having the formula
• R.sup.10 O(R.sup.11)
• wherein R.sup.10 is a C.sub.10-18 aliphatic group and R.sup.11 is a C.sub.1-5 alkyl group, and R.sup.2 is a C.sub.1-5 alkylene group.

A process for lubricating and reducing microbiological concentrations on the load bearing surface of a conveyor system comprising the steps of:

• (a) dispersing a concentrate of an antimicrobial an lubricating composition into sufficient water to form an aqueous antimicrobial lubricating solution, wherein
• (i) said antimicrobial lubricating concentrate comprises at least an effective lubricating and antimicrobial amount of a diamine acetate having the formula
• ( (R.sup.1)NH(R.sup.2)NH.sub.3) .sup.+ (CH.sub.3 COO).sup.-
• or
• ( R.sup.1)NH.sub.2 (R.sup.2)NH.sub.3.sup.++) (CH.sub.3 COO).sub.2.sup.-
• wherein R.sup.1 is an ether group having the formula
• R.sup.10 O(R.sup.11)
• wherein R.sup.10 is a C.sub.10-18 aliphatic group and R.sup.11 is a C.sub.1-5 alkyl group, and R.sup.2 is a C.sub.1-5 alkylene group, and
• (ii) said antimicrobial lubricating solution has a pH of between 5 and 6 and comprises at least about 200-4,000 ppm (s/v) of the diamine acetate;
• and
• (b) placing said antimicrobial lubricating solution onto the load bearing surface of an operating conveyor system for a period of time effective to lubricate and reduce microbial populations on the load bearing surface.